diff options
Diffstat (limited to 'drivers/net/virtio_net.c')
| -rw-r--r-- | drivers/net/virtio_net.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index defec2b3c5a4..bbc9cb84ec1f 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -938,7 +938,9 @@ static int virtnet_set_queues(struct virtnet_info *vi, u16 queue_pairs) return -EINVAL; } else { vi->curr_queue_pairs = queue_pairs; - schedule_delayed_work(&vi->refill, 0); + /* virtnet_open() will refill when device is going to up. */ + if (dev->flags & IFF_UP) + schedule_delayed_work(&vi->refill, 0); } return 0; @@ -1128,6 +1130,7 @@ static int virtnet_cpu_callback(struct notifier_block *nfb, default: break; } + return NOTIFY_OK; } @@ -1689,6 +1692,8 @@ static int virtnet_freeze(struct virtio_device *vdev) struct virtnet_info *vi = vdev->priv; int i; + unregister_hotcpu_notifier(&vi->nb); + /* Prevent config work handler from accessing the device */ mutex_lock(&vi->config_lock); vi->config_enable = false; @@ -1733,7 +1738,13 @@ static int virtnet_restore(struct virtio_device *vdev) vi->config_enable = true; mutex_unlock(&vi->config_lock); + rtnl_lock(); virtnet_set_queues(vi, vi->curr_queue_pairs); + rtnl_unlock(); + + err = register_hotcpu_notifier(&vi->nb); + if (err) + return err; return 0; } |